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Amana Manuals
Heat Pump
ASXC16
Service and troubleshooting
Amana ASXC16 Service And Troubleshooting page 75
Asxc, dsxc, and gsxc condensing units, aszc, dszc, and gszc split system heat pumps with r-410a refrigerant blowers, coils, & accessories
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
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SERVICING
Symptoms
Diagnostic/Status LED
of Abnormal
Digit 3 Digit 2
Operation
• Run time for last 4
BLANK
cycles is less than 3
minutes each.
• Compressor protector
has not tripped. Low
pressure and high
pressure switches are
closed.
• Integrated control
module diagnostic/
status LED display
shows the indicated
code.
• Compressor and
BLANK
outdoor fan are off
• Compressor protector
trips four consecutive
times
• Average run time
between trips is less
than 15 seconds
• Integrated control
module diagnostic/
status LED display
shows the indicated
code
• Compressor and
BLANK
outdoor fan are off for
greater than 4 hours
• Low pressure and high
pressure switches are
closed
• Integrated control
module diagnostic/
status LED display
shows the indicated
code
• Compressor and
BLANK
outdoor fan are off
• Low pressure and high
pressure switches are
closed
• Integrated control
module diagnostic/
status LED display
shows the indicated
code
UNITARY DIAGNOSTIC CODES
Display Codes
Digit 1
0
3
• Short Cycling
0
4
• Locked Rotor
0
5
• Open Circuit
0
6
• Open Start
Circuit
Fault
Possible
Description
Causes
• Intermittent
thermostat demand
• Faulty compressor
relay
• Compressor
bearings are seized
• Failed compressor
run capacitor
• Faulty run
capacitor wiring
• Low line voltage
• Power is
disconnected
• Failed compressor
protector
• Compressor not
properly wired to
control
• Compressor start
winding is open
• Failed compressor
run capacitor
• Faulty run
capacitor wiring
• Compressor not
properly wired to
control
• Faulty compressor
wiring
Corrective
Notes &
Actions
Cautions
• Check thermostat
• Turn power OFF
and thermostat
prior to repair
wiring; repair/
• Fault will clear after
replace as needed
4 consecutive normal
• Check
cycles
compressor relay
• Fault may be cleared
operation; replace
by cycling 24VAC to
control as needed
control
• Replace with correct
replacement part(s)
• Minimum
compressor run time
is changed from 30
seconds to 3 minutes
• Check
• Turn power OFF
compressor
prior to repair
operation; repair/
• Must clear fault by
replace as needed
cycling 24VAC to
• Check run
control
capacitor; replace
• Replace with correct
as needed
replacement part(s)
• Check wiring;
repair/replace as
needed
• Verify line voltage
is within range on
rating plate; control
local utility is out of
range
• Check circuit
• Turn power OFF
breakers and fuses
prior to repair
• Check wiring to
• Fault will clear after
unit; repair/replace
1 normal cycle
as needed
• Fault may be cleared
• Check
by cycling 24VAC to
compressor;
control
repair/replace as
• Replace with correct
needed
replacement part(s)
• Check
compressor wiring;
repair/replace as
needed
• Check
• Turn power OFF
compressor;
prior to repair
repair/replace as
• Fault will clear after
needed
1 normal cycle
• Check run
• Fault may be cleared
capacitor; replace
by cycling 24VAC to
as needed
control
• Check wiring;
• Replace will correct
repair/replace as
replacement part(s)
needed
PCBHR104
75
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Table of Contents
Troubleshooting
Communications Troubleshooting Chart
19
Reversing Valve
22
Troubleshooting
43
Electric Heater (Optional Item)
44
System Troubleshooting
71
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This manual is also suitable for:
Asxc18
Gsxc16
Gsxc18
Dsxc16
Dsxc18
Aszc16
...
Show all
Aszc18
Gszc16
Gszc18
Dszc16
Dszc18
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